What matters first in tool-lending libraries is the initiative created among participants. To preserve peer-to-peer advice, administration around tool-lending libraries should remain small, although attendance must later be checked against learning and continued involvement rather than celebrated alone.

Average outcomes for tool-lending libraries conceal deposit rules and transport barriers. I would examine access to tool-lending libraries by time, location and prior confidence, then adjust support to the unequal pattern instead of assuming identical treatment is fair.

For tool-lending libraries, launch attendance says little about successful completion of household repairs. A credible study of tool-lending libraries would follow participants for months, include those who leave, and retain peer-to-peer advice through a light framework of safety rules and accessible advice.

The evidence for tool-lending libraries must also extend beyond opening week, particularly when asking whether borrowers successfully complete household repairs. Unlike Writer A, I would give tool-lending libraries a named coordinator, a published timetable and minimum reports so repeated problems lead to institutional learning.